Preliminary Report on Control Effect of Suyunjia SC on Cnaphalocrocis medinalis in Rice Field

The control effect of Suyunjia SC on Cnaphalocrocis medinalis was tested in rice field.The results showed that Suyunjia SC had high control effect against Cnaphalocrocis medinalis,it possessed the characteristics of high and persistent efficiency,low poison,safety and so on.When Suyunjia SC was used to control Cnaphalocrocis medinalis,the optimum control time was during the occurrence peak of 1～2 instar larvae,and the suitable dosage was 75～100 mL/667m2.